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authorJeff Mahoney <jeffm@suse.com>2007-10-18 23:39:25 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 11:53:35 -0700
commit6c57c2c8d3862c8d5b908669654f6565da74ec19 (patch)
treed2c157ad57296e27f0d5bcc89fdb33f209b8b6c9
parentd4c3d19d0c10701459f16c022ea23eff5e127747 (diff)
reiserfs: fix memset byte count during resize
Correct the memset in reiserfs_resize to clear the memory allocated for the new bitmap info structs. Previously, it would clear the memory used by the old size. Depending on the contents of memory, this could cause incorrect caching behavior for bitmap blocks in the newly allocated area. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/reiserfs/resize.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/reiserfs/resize.c b/fs/reiserfs/resize.c
index 976cc7887a0d..3bec2f96242a 100644
--- a/fs/reiserfs/resize.c
+++ b/fs/reiserfs/resize.c
@@ -119,7 +119,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
return -ENOMEM;
}
memset(bitmap, 0,
- sizeof(struct reiserfs_bitmap_info) * SB_BMAP_NR(s));
+ sizeof(struct reiserfs_bitmap_info) * bmap_nr_new);
for (i = 0; i < bmap_nr; i++)
bitmap[i] = old_bitmap[i];